Safety fastening device



3, 1929. P. DE LAPPARENT SAFETY FASTENING DEVICE Filed July 19, 1927 2 Sheets-Sheet age-2122 555-21";

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Aug. 13, 1929. P. DE LAPPARENT SAFETY FASTENING DEVICE Filed July 19, 1927 2 Sheets$heet 2 (/Vl/A-WTOR UNITED STATES PAUL DE LAPPARENT,

PATENT OFFICE.

OF PARIS, FRANCE.

SAFETY FASTENING DEVICE.

Application filed July 19, 1927, Serial No.

The doors of rooms or of pieces of furniture are as a rule held only by the latch of the door lock which is engaged in the staple, so that a lever or burglars tool can be inserted between'two door leaves in the case of double doors, or between the door leaf and the door casing, for single doors, and the door is thus forced open sufficiently to disengage the latch from the staple.

The present invention relates to a fastening device by which the door will be secured at several points upon its height.

The said device may comprise a plurality of superposed slidable rods, which are mounted in alternate position upon each door leaf, and are adapted to fit into one another.

The lower rod is operated by means of a lever or eccentric, or the like, in order to hold the door in the closed position in the most approved manner.

The appended drawing shows by Way of example various embodiments of the invention.

Fig. 1 is an elevational view of a double door, and,

Fig. 2 shows a closin device for a gate.

Fig. 3 relates to a window provided with a closing rod, and,

Figs. 4 and 5 are corresponding horizontal sections.

In Fig. 1, 1 and 2 are the leaves of the door.

The rods 3 are mounted upon the respective door leaves, and are slidable in the collars 4 disposed in the rabbets. At the lower part of the said rods are disposed recesses 5 coacting with the upper ends of the respective rods situated below the same.

When the door leaves are brought together, the lower rod is raised, and its pointed end enters the conical recess situated above the said end, and it raises the corresponding rod Whose pointed end enters the conical recess of the following rod, and this action is continued to the top of the door. The last rod at the top enters a conically recessed member 6 which is secured to the door leaf as herein represented, but it is preferably secured to the door casing.

In this arrangement, when the door leaves 207,003, and in France August 24, 1926.

are closed they will be held throughout its entire height, and hence cannot be forced apart by means of a lever or burglars tool. Even in the case of a door which is hinged to side postswhich may be somewhat displaced, the closing device will operate as before for if the pointed end of a member enters at one side of a conical recess, it will obviously be brought upon the centre line.

This is the case for garden gates, as shown in Fig. 2.

The first rod 3 may be controlled by a wire cable 7 connected with a lever 8 which may be raised by a cam 9 secured to the handle 10. A fastening device 11 serves to hold the cam 9 by means of a latch 12 coacting with the said cam. If the upper rod is raised through the distance represented by the heightof a conical recess, the next rod will rise by twice this distance, and this action is continued to the bottom, so that the collars 4 must be so disposed as to allow the several rods to move in the proper manner.

A suitable pin may be engaged in each rod, and it coacts with a collar in such manner that the rod will not descend when the door is opened, and herein the rods descend by their own weight.

My said apparatus may be further employed as a fastening device for furniture, and for this use the conical recesses are reduced to small recesses formed in the lower ends of the rods, and the whole device may be concealed in the rabbet.

As shown in Fig. 3, in the case of a window of great height, I may employ a window rod 13 of the usual length, and also utilize a second rod 14 which is provided with a concave recess in line with the first rod. The joint of the window leaves has the cross section shown in Figs. 4 and 5, in which Fig. 4 shows the upper joint and Fig. 5 the lower joint.

Obviosuly, the said constructions are represented solely as illustrative of the spirit of 95 my said invention, and without departing from its principle I may vary the assembling of the several rods as well as the means employed for their control and fastening.

Having thus described my apparatus, what 100 I claim as new therein, and my own invention, is

A latching device for use on doors, windows, and the like comprising a plurality of 5 superposed slidable elements mounted in alternate position upon the door leaf and the door casing, a pointed end formed at the top of each element, an inverted funnelshaped part formed at the lower part of the same, and means for raising the lower elel0 ment.

In testimony whereof I have hereunto atfixed my signature.

PAUL DE LAPPARENT. 

